来自程乾的问题
英语.主动语态变被动语态的题.Wemustplantmoretreesnextyear.
英语.主动语态变被动语态的题.
Wemustplantmoretreesnextyear.


英语.主动语态变被动语态的题.Wemustplantmoretreesnextyear.
英语.主动语态变被动语态的题.
Wemustplantmoretreesnextyear.
Moretreesmustbeplantednextyear.